You see, young'n, before y'all had yer "Chaotix" and whatnot, Sonic and his friends were members of a cadre set on saving Mobius from Robotnik's clutches.

This image I snatched from Wikipedia has most of the key Fighters. Clockwise from the upper-left, we have Bunnie Rabbot, Rotor the Walrus, Tails, Prince Elias, Sally, Sonic, Amy, Antoine D'Coolette, and Fiona Fox.

Personally, I'd have to pick Antoine. He's charismatic and also very arrogant, much like Sonic. He has a strong sense of chivalry and is also a bit of a lech. However, later on he does seem to calm down and eventually weds Bunnie. (Val approves of this very sexy marriage!) All in all, he reminds me of me, except he's French and a anthropomorphic coyote.

Also, I was moved by Mina Mongoose's role in the comics. Very touching what she did for Sonic and Sally.

Post and vote.

Edit: Crap, I didn't add Antoine to the poll. Anyone, edit? He was quite a bit more important character than Amy, or Elias or Mina.